Can someone help me understand why this isn't working? Big juicy monkey brain no work right

I have a character ability system that works for the most part, however, for some reason I can't get my head around, this won't work. The RemoteEvent I have set up is only supposed to execute once, and then check that the ability that it's linked to is disabled, yet after the first time it completely breaks, especially if you spam it. Obviously hints towards something not being reset properly, but it is? Idk but here's the code:

-----------------------
-- General Variables --
-----------------------

local player = game:GetService("Players"):WaitForChild(script.Parent.Name)
local character = workspace:WaitForChild(player.Name)
local humanoid = character:WaitForChild("Humanoid")

local RunService = game:GetService("RunService")
local ServerStorage = game:GetService("ServerStorage")

local Events = game:GetService("ReplicatedStorage").RemoteEventsAndFunctions

local SetHUDProgressBar = Events.SetHUDProgressBar

local AbilityEvents = Events.Abilities

local disableActions = script.DisableActions

local ability1 = script.Ability1
local ability2 = script.Ability2
local ability3 = script.Ability3
local abilitySlots = {ability1, ability2, ability3}

local activateAbility1Cooldown = false
local activateAbility2Cooldown = false
local activateAbility3Cooldown = false
local ability1Cooldown = 0
local ability2Cooldown = 0
local ability3Cooldown = 0
local ability1Disabled = false
local ability2Disabled = false
local ability3Disabled = false

----------------------------------
-- Character specific variables --
----------------------------------

local SlamEvent = AbilityEvents.Slam
local ChargeEvent = AbilityEvents.Charge
local PunchEvent = AbilityEvents.Punch

local slamFolder = script.BruteMoveset.Slam
local slamAttackTime = slamFolder.AttackTime.Value
local slamRecoveryTime = slamFolder.RecoveryTime.Value

local slamAnim = slamFolder.Animations.Slam
local slamRecovery = slamFolder.Animations.SlamRecovery
local slamAnimTrack = humanoid:LoadAnimation(slamAnim)
local slamAnimRecoveryTrack = humanoid:LoadAnimation(slamRecovery)

--------------------
-- Base functions --
--------------------

local function GetAbilitySlot(abilityFolder)
	for i, v in ipairs(abilitySlots) do
		if v.Value == abilityFolder then
			return i
		else
			return -1
		end
	end
end

local function ActivateCooldown(slotIndex)
	if slotIndex == 0 then
		ability1Cooldown = abilitySlots[0].Value.Cooldown.Value
		activateAbility1Cooldown = true
	elseif slotIndex == 1 then
		ability2Cooldown = abilitySlots[1].Value.Cooldown.Value
		activateAbility2Cooldown = true
	elseif slotIndex == 2 then
		ability3Cooldown = abilitySlots[2].Value.Cooldown.Value
		activateAbility3Cooldown = true
	end
end

local function GetAbilityDisabled(slotIndex)
	if slotIndex == 0 then
		return ability1Disabled
	elseif slotIndex == 1 then
		return ability2Disabled
	elseif slotIndex == 2 then
		return ability3Disabled
	end
end

local function SetAbilityDisabled(slotIndex, value)
	if slotIndex == 0 then
		ability1Disabled = value
	elseif slotIndex == 1 then
		ability2Disabled = value
	elseif slotIndex == 2 then
		ability3Disabled = value
	end
end

local function SpawnAOE(size, cframe)
	local newAOE = ServerStorage.GameplayObjects.DestructiveAOE:Clone()
	newAOE.Instigator.Value = player.Character
	newAOE.Size = Vector3.new(size, size, size)
	newAOE.Parent = workspace
	newAOE.CFrame = cframe
	newAOE.BreakWelds.Disabled = false
end

----------------------------------
-- Character specific functions --
----------------------------------

SlamEvent.OnServerEvent:Connect(function(_player)
	local slotIndex = GetAbilitySlot(slamFolder)
	local abilityDisabled = GetAbilityDisabled(slotIndex)
	
	if _player == player and slotIndex ~= -1 and abilityDisabled == false then
		SetAbilityDisabled(slotIndex, true)
		disableActions.Value = true
		
		SetHUDProgressBar:FireClient(_player, slotIndex, 1, false, 0)
		
		slamAnimTrack:Play()
		slamAnimTrack:AdjustSpeed(1/slamAttackTime - (1/slamAttackTime) * 0.2)
		
		slamAnimTrack:GetMarkerReachedSignal("AboutToSlam"):Connect(function(stringParam)
			slamAnimTrack:AdjustSpeed(1)
		end)
		
		slamAnimTrack.Stopped:Connect(function()
			SpawnAOE(slamFolder.AOESize.Value, character.HumanoidRootPart.CFrame * CFrame.new(0,-9,-10))
			slamAnimRecoveryTrack:Play()
			slamAnimRecoveryTrack:AdjustSpeed(1/slamRecoveryTime)
			
			slamAnimRecoveryTrack.Stopped:Connect(function()
				disableActions.Value = false
				ActivateCooldown(slotIndex)
				SetHUDProgressBar:FireClient(_player, slotIndex, 0, true, abilitySlots[slotIndex].Value.Cooldown.Value)
			end)
		end)
	end
end)

RunService.Stepped:Connect(function(_time, step)
	if activateAbility1Cooldown == true and ability1Disabled == true then
		ability1Cooldown = ability1Cooldown - step
		
		if ability1Cooldown <= 0 then
			activateAbility1Cooldown = false
			ability1Disabled = false
		end
	end
	
	if activateAbility2Cooldown == true and ability2Disabled == true then
		ability2Cooldown = ability2Cooldown - step

		if ability2Cooldown <= 0 then
			activateAbility2Cooldown = false
			ability2Disabled = false
		end
	end
	
	if activateAbility3Cooldown == true and ability3Disabled == true then
		ability3Cooldown = ability3Cooldown - step

		if ability3Cooldown <= 0 then
			activateAbility3Cooldown = false
			ability3Disabled = false
		end
	end
end)